Dont rush it now. You waited this long just be patient. It will pay off. Now is like eating a green banana, you need to wait till its perfect ripeness for best results. And trim how i told you if you want cream. So many people fuck their crops at this point, just wait.
Also on the whole toxin thing. You could feed nutes till very and and if you dry weed properly there will be very little if any toxins in the weed you smoke. Flushing helps the plant to finish and boosts yield. But the metabolism of weed plants is crazy and soaks up and deals with toxins and heavy metals quickly. It even soaks up and makes radioactive material inert. Hence why the japanese wanted to plant hemp to clean up nuclear disaster but US givernment wouldnt allow it!